diff --git a/flake.nix b/flake.nix
index d928964..d294c50 100644
--- a/flake.nix
+++ b/flake.nix
@@ -71,7 +71,7 @@
                   ]
                   ++ baseModules;
                 }
-              ) hosts;
+              ) (attrsets.filterAttrs (name: info: !(info.isDebian or false)) hosts);
             attrs_vm_info = listInfoToAttrs (get_info ./hosts/vm) { isVm = true; };
             attrs_physique_info = listInfoToAttrs (get_info ./hosts/physiques) { isVm = false; };
             attrs_all_info = attrs_physique_info // attrs_vm_info;
@@ -79,14 +79,14 @@
           (attrsToNixosSystem ./hosts/vm attrs_all_info attrs_vm_info)
           // (attrsToNixosSystem ./hosts/physiques attrs_all_info attrs_physique_info)
           // {
-            cransIso = nixosSystem {
-              system = "x86_64-linux";
-              specialArgs = inputs;
-              modules = [
-                ./hosts/iso
-                ./modules/crans/locale.nix
-              ];
-            };
+            # cransIso = nixosSystem {
+            #   system = "x86_64-linux";
+            #   specialArgs = inputs;
+            #   modules = [
+            #     ./hosts/iso
+            #     ./modules/crans/locale.nix
+            #   ];
+            # };
           };
       };
 
diff --git a/hosts/physiques/cephiroth/info.nix b/hosts/physiques/cephiroth/info.nix
index 6c3b5c7..e2f7b28 100644
--- a/hosts/physiques/cephiroth/info.nix
+++ b/hosts/physiques/cephiroth/info.nix
@@ -3,6 +3,9 @@
   description = "Serveur de stockage ceph";
   id = 3;
 
+  # Sous Nix mais dans une autre branche
+  isDebian = true;
+
   networking = {
     adm.enable = true;
     san.enable = true;
@@ -12,7 +15,7 @@
       arceus = 12;
     };
   };
-  
+
   ilo = {
     id = 53;
     switch.salameche = 20;
diff --git a/modules/crans/default.nix b/modules/crans/default.nix
index d55cf8a..333d11a 100644
--- a/modules/crans/default.nix
+++ b/modules/crans/default.nix
@@ -6,8 +6,9 @@ let
   inherit (lib)
     mkEnableOption
     mkOption
-    types
     mkIf
+    types
+    optional
     ;
 in
 {
@@ -42,6 +43,13 @@ in
       description = "Est-ce une machine virtuelle ?";
     };
 
+    isDebian = mkOption {
+      type = types.bool;
+      default = false;
+      example = "true";
+      description = "Est-ce une machine Debian ?";
+    };
+
     description = mkOption {
       type = types.str;
       example = "VM de test";
@@ -77,5 +85,11 @@ in
         ldap.enable = true;
       };
     };
+
+    warnings = (
+      optional (
+        cfg.isVm != (cfg.id >= 100)
+      ) "${cfg.name}: isVm (${toString cfg.isVm}) est incohérent avec son id (${toString cfg.id})"
+    );
   };
 }